VMWare vCenter: “incorrect username or password” when connecting to host

installationvmware-esxivmware-servervmware-vcentervmware-vsphere

  • I have an existing vCenter server (v5.0) with two existing ESXi servers.
  • I recently installed ESXi v5.1 on two new servers.
  • I configured their hostnames, IPs, DNS, gateway, etc. and both pass their management network test.
  • I can also ping them both from my machine by both ip and hostname.
  • I can login to the local machines just fine from the console using "root" and a password that is well-known to me.

In my existing vCenter, when I attempt to add the new server to a cluster, I receive the error "A general system error occurred: Timed waiting for vpxa to start" — and the specific event listed is "cannot connect [myservername]: incorrect user name or password."

  • I have tried adding the server with and without a FQDN
  • I've tried with a license key and in evaluation mode
  • I've tried those steps for both of the new servers I installed ESXi onto.

Not sure where to even begin here. Hoping to avoid a support ticket; thanks in advance for any help you can give!

Best Answer

You must upgrade vCenter to 5.1 in order to add a host with ESXi 5.1. No vCenter version prior to 5.1 supports ESXi 5.1.

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